1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
5 * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
6 * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are met:
10 *
11 * a) Redistributions of source code must retain the above copyright notice,
12 *    this list of conditions and the following disclaimer.
13 *
14 * b) Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in
16 *    the documentation and/or other materials provided with the distribution.
17 *
18 * c) Neither the name of Cisco Systems, Inc. nor the names of its
19 *    contributors may be used to endorse or promote products derived
20 *    from this software without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
24 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
26 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
32 * THE POSSIBILITY OF SUCH DAMAGE.
33 */
34
35#ifndef _NETINET_SCTP_UIO_H_
36#define _NETINET_SCTP_UIO_H_
37
38#if !defined(_KERNEL)
39#include <stdint.h>
40#endif
41#include <sys/types.h>
42#include <sys/socket.h>
43#include <netinet/in.h>
44
45typedef uint32_t sctp_assoc_t;
46
47#define SCTP_FUTURE_ASSOC  0
48#define SCTP_CURRENT_ASSOC 1
49#define SCTP_ALL_ASSOC     2
50
51struct sctp_event {
52	sctp_assoc_t se_assoc_id;
53	uint16_t se_type;
54	uint8_t se_on;
55};
56
57/* Compatibility to previous define's */
58#define sctp_stream_reset_events sctp_stream_reset_event
59
60/* On/Off setup for subscription to events */
61struct sctp_event_subscribe {
62	uint8_t sctp_data_io_event;
63	uint8_t sctp_association_event;
64	uint8_t sctp_address_event;
65	uint8_t sctp_send_failure_event;
66	uint8_t sctp_peer_error_event;
67	uint8_t sctp_shutdown_event;
68	uint8_t sctp_partial_delivery_event;
69	uint8_t sctp_adaptation_layer_event;
70	uint8_t sctp_authentication_event;
71	uint8_t sctp_sender_dry_event;
72	uint8_t sctp_stream_reset_event;
73};
74
75/* ancillary data types */
76#define SCTP_INIT	0x0001
77#define SCTP_SNDRCV	0x0002
78#define SCTP_EXTRCV	0x0003
79#define SCTP_SNDINFO    0x0004
80#define SCTP_RCVINFO    0x0005
81#define SCTP_NXTINFO    0x0006
82#define SCTP_PRINFO     0x0007
83#define SCTP_AUTHINFO   0x0008
84#define SCTP_DSTADDRV4  0x0009
85#define SCTP_DSTADDRV6  0x000a
86
87/*
88 * ancillary data structures
89 */
90struct sctp_initmsg {
91	uint16_t sinit_num_ostreams;
92	uint16_t sinit_max_instreams;
93	uint16_t sinit_max_attempts;
94	uint16_t sinit_max_init_timeo;
95};
96
97/* We add 96 bytes to the size of sctp_sndrcvinfo.
98 * This makes the current structure 128 bytes long
99 * which is nicely 64 bit aligned but also has room
100 * for us to add more and keep ABI compatibility.
101 * For example, already we have the sctp_extrcvinfo
102 * when enabled which is 48 bytes.
103 */
104
105/*
106 * The assoc up needs a verfid
107 * all sendrcvinfo's need a verfid for SENDING only.
108 */
109
110#define SCTP_ALIGN_RESV_PAD 92
111#define SCTP_ALIGN_RESV_PAD_SHORT 76
112
113struct sctp_sndrcvinfo {
114	uint16_t sinfo_stream;
115	uint16_t sinfo_ssn;
116	uint16_t sinfo_flags;
117	uint32_t sinfo_ppid;
118	uint32_t sinfo_context;
119	uint32_t sinfo_timetolive;
120	uint32_t sinfo_tsn;
121	uint32_t sinfo_cumtsn;
122	sctp_assoc_t sinfo_assoc_id;
123	uint16_t sinfo_keynumber;
124	uint16_t sinfo_keynumber_valid;
125	uint8_t __reserve_pad[SCTP_ALIGN_RESV_PAD];
126};
127
128struct sctp_extrcvinfo {
129	uint16_t sinfo_stream;
130	uint16_t sinfo_ssn;
131	uint16_t sinfo_flags;
132	uint32_t sinfo_ppid;
133	uint32_t sinfo_context;
134	uint32_t sinfo_timetolive;	/* should have been sinfo_pr_value */
135	uint32_t sinfo_tsn;
136	uint32_t sinfo_cumtsn;
137	sctp_assoc_t sinfo_assoc_id;
138	uint16_t serinfo_next_flags;
139	uint16_t serinfo_next_stream;
140	uint32_t serinfo_next_aid;
141	uint32_t serinfo_next_length;
142	uint32_t serinfo_next_ppid;
143	uint16_t sinfo_keynumber;
144	uint16_t sinfo_keynumber_valid;
145	uint8_t __reserve_pad[SCTP_ALIGN_RESV_PAD_SHORT];
146};
147#define sinfo_pr_value sinfo_timetolive
148#define sreinfo_next_flags serinfo_next_flags
149#define sreinfo_next_stream serinfo_next_stream
150#define sreinfo_next_aid serinfo_next_aid
151#define sreinfo_next_length serinfo_next_length
152#define sreinfo_next_ppid serinfo_next_ppid
153
154struct sctp_sndinfo {
155	uint16_t snd_sid;
156	uint16_t snd_flags;
157	uint32_t snd_ppid;
158	uint32_t snd_context;
159	sctp_assoc_t snd_assoc_id;
160};
161
162struct sctp_prinfo {
163	uint16_t pr_policy;
164	uint32_t pr_value;
165};
166
167struct sctp_default_prinfo {
168	uint16_t pr_policy;
169	uint32_t pr_value;
170	sctp_assoc_t pr_assoc_id;
171};
172
173struct sctp_authinfo {
174	uint16_t auth_keynumber;
175};
176
177struct sctp_rcvinfo {
178	uint16_t rcv_sid;
179	uint16_t rcv_ssn;
180	uint16_t rcv_flags;
181	uint32_t rcv_ppid;
182	uint32_t rcv_tsn;
183	uint32_t rcv_cumtsn;
184	uint32_t rcv_context;
185	sctp_assoc_t rcv_assoc_id;
186};
187
188struct sctp_nxtinfo {
189	uint16_t nxt_sid;
190	uint16_t nxt_flags;
191	uint32_t nxt_ppid;
192	uint32_t nxt_length;
193	sctp_assoc_t nxt_assoc_id;
194};
195
196#define SCTP_NO_NEXT_MSG           0x0000
197#define SCTP_NEXT_MSG_AVAIL        0x0001
198#define SCTP_NEXT_MSG_ISCOMPLETE   0x0002
199#define SCTP_NEXT_MSG_IS_UNORDERED 0x0004
200#define SCTP_NEXT_MSG_IS_NOTIFICATION 0x0008
201
202struct sctp_recvv_rn {
203	struct sctp_rcvinfo recvv_rcvinfo;
204	struct sctp_nxtinfo recvv_nxtinfo;
205};
206
207#define SCTP_RECVV_NOINFO  0
208#define SCTP_RECVV_RCVINFO 1
209#define SCTP_RECVV_NXTINFO 2
210#define SCTP_RECVV_RN      3
211
212#define SCTP_SENDV_NOINFO   0
213#define SCTP_SENDV_SNDINFO  1
214#define SCTP_SENDV_PRINFO   2
215#define SCTP_SENDV_AUTHINFO 3
216#define SCTP_SENDV_SPA      4
217
218struct sctp_sendv_spa {
219	uint32_t sendv_flags;
220	struct sctp_sndinfo sendv_sndinfo;
221	struct sctp_prinfo sendv_prinfo;
222	struct sctp_authinfo sendv_authinfo;
223};
224
225#define SCTP_SEND_SNDINFO_VALID  0x00000001
226#define SCTP_SEND_PRINFO_VALID   0x00000002
227#define SCTP_SEND_AUTHINFO_VALID 0x00000004
228
229struct sctp_snd_all_completes {
230	uint16_t sall_stream;
231	uint16_t sall_flags;
232	uint32_t sall_ppid;
233	uint32_t sall_context;
234	uint32_t sall_num_sent;
235	uint32_t sall_num_failed;
236};
237
238/* Flags that go into the sinfo->sinfo_flags field */
239#define SCTP_NOTIFICATION     0x0010	/* next message is a notification */
240#define SCTP_COMPLETE         0x0020	/* next message is complete */
241#define SCTP_EOF              0x0100	/* Start shutdown procedures */
242#define SCTP_ABORT            0x0200	/* Send an ABORT to peer */
243#define SCTP_UNORDERED        0x0400	/* Message is un-ordered */
244#define SCTP_ADDR_OVER        0x0800	/* Override the primary-address */
245#define SCTP_SENDALL          0x1000	/* Send this on all associations */
246#define SCTP_EOR              0x2000	/* end of message signal */
247#define SCTP_SACK_IMMEDIATELY 0x4000	/* Set I-Bit */
248
249#define INVALID_SINFO_FLAG(x) (((x) & 0xfffffff0 \
250                                    & ~(SCTP_EOF | SCTP_ABORT | SCTP_UNORDERED |\
251				        SCTP_ADDR_OVER | SCTP_SENDALL | SCTP_EOR |\
252					SCTP_SACK_IMMEDIATELY)) != 0)
253/* for the endpoint */
254
255/* The lower four bits is an enumeration of PR-SCTP policies */
256#define SCTP_PR_SCTP_NONE 0x0000	/* Reliable transfer */
257#define SCTP_PR_SCTP_TTL  0x0001	/* Time based PR-SCTP */
258#define SCTP_PR_SCTP_PRIO 0x0002	/* Buffer based PR-SCTP */
259#define SCTP_PR_SCTP_BUF  SCTP_PR_SCTP_PRIO	/* For backwards compatibility */
260#define SCTP_PR_SCTP_RTX  0x0003	/* Number of retransmissions based
261					 * PR-SCTP */
262#define SCTP_PR_SCTP_MAX  SCTP_PR_SCTP_RTX
263#define SCTP_PR_SCTP_ALL  0x000f	/* Used for aggregated stats */
264
265#define PR_SCTP_POLICY(x)         ((x) & 0x0f)
266#define PR_SCTP_ENABLED(x)        ((PR_SCTP_POLICY(x) != SCTP_PR_SCTP_NONE) && \
267                                   (PR_SCTP_POLICY(x) != SCTP_PR_SCTP_ALL))
268#define PR_SCTP_TTL_ENABLED(x)    (PR_SCTP_POLICY(x) == SCTP_PR_SCTP_TTL)
269#define PR_SCTP_BUF_ENABLED(x)    (PR_SCTP_POLICY(x) == SCTP_PR_SCTP_BUF)
270#define PR_SCTP_RTX_ENABLED(x)    (PR_SCTP_POLICY(x) == SCTP_PR_SCTP_RTX)
271#define PR_SCTP_INVALID_POLICY(x) (PR_SCTP_POLICY(x) > SCTP_PR_SCTP_MAX)
272#define PR_SCTP_VALID_POLICY(x)   (PR_SCTP_POLICY(x) <= SCTP_PR_SCTP_MAX)
273
274/* Stat's */
275struct sctp_pcbinfo {
276	uint32_t ep_count;
277	uint32_t asoc_count;
278	uint32_t laddr_count;
279	uint32_t raddr_count;
280	uint32_t chk_count;
281	uint32_t readq_count;
282	uint32_t free_chunks;
283	uint32_t stream_oque;
284};
285
286struct sctp_sockstat {
287	sctp_assoc_t ss_assoc_id;
288	uint32_t ss_total_sndbuf;
289	uint32_t ss_total_recv_buf;
290};
291
292/*
293 * notification event structures
294 */
295
296/*
297 * association change event
298 */
299struct sctp_assoc_change {
300	uint16_t sac_type;
301	uint16_t sac_flags;
302	uint32_t sac_length;
303	uint16_t sac_state;
304	uint16_t sac_error;
305	uint16_t sac_outbound_streams;
306	uint16_t sac_inbound_streams;
307	sctp_assoc_t sac_assoc_id;
308	uint8_t sac_info[];
309};
310
311/* sac_state values */
312#define SCTP_COMM_UP            0x0001
313#define SCTP_COMM_LOST          0x0002
314#define SCTP_RESTART            0x0003
315#define SCTP_SHUTDOWN_COMP      0x0004
316#define SCTP_CANT_STR_ASSOC     0x0005
317
318/* sac_info values */
319#define SCTP_ASSOC_SUPPORTS_PR			0x01
320#define SCTP_ASSOC_SUPPORTS_AUTH		0x02
321#define SCTP_ASSOC_SUPPORTS_ASCONF		0x03
322#define SCTP_ASSOC_SUPPORTS_MULTIBUF		0x04
323#define SCTP_ASSOC_SUPPORTS_RE_CONFIG		0x05
324#define SCTP_ASSOC_SUPPORTS_INTERLEAVING	0x06
325#define SCTP_ASSOC_SUPPORTS_MAX			0x06
326/*
327 * Address event
328 */
329struct sctp_paddr_change {
330	uint16_t spc_type;
331	uint16_t spc_flags;
332	uint32_t spc_length;
333	struct sockaddr_storage spc_aaddr;
334	uint32_t spc_state;
335	uint32_t spc_error;
336	sctp_assoc_t spc_assoc_id;
337};
338
339/* paddr state values */
340#define SCTP_ADDR_AVAILABLE	0x0001
341#define SCTP_ADDR_UNREACHABLE	0x0002
342#define SCTP_ADDR_REMOVED	0x0003
343#define SCTP_ADDR_ADDED		0x0004
344#define SCTP_ADDR_MADE_PRIM	0x0005
345#define SCTP_ADDR_CONFIRMED	0x0006
346
347#define SCTP_ACTIVE		0x0001	/* SCTP_ADDR_REACHABLE */
348#define SCTP_INACTIVE		0x0002	/* neither SCTP_ADDR_REACHABLE nor
349					 * SCTP_ADDR_UNCONFIRMED */
350#define SCTP_UNCONFIRMED	0x0200	/* SCTP_ADDR_UNCONFIRMED */
351
352/* remote error events */
353struct sctp_remote_error {
354	uint16_t sre_type;
355	uint16_t sre_flags;
356	uint32_t sre_length;
357	uint16_t sre_error;
358	sctp_assoc_t sre_assoc_id;
359	uint8_t sre_data[];
360};
361
362/* data send failure event (deprecated) */
363struct sctp_send_failed {
364	uint16_t ssf_type;
365	uint16_t ssf_flags;
366	uint32_t ssf_length;
367	uint32_t ssf_error;
368	struct sctp_sndrcvinfo ssf_info;
369	sctp_assoc_t ssf_assoc_id;
370	uint8_t ssf_data[];
371};
372
373/* data send failure event (not deprecated) */
374struct sctp_send_failed_event {
375	uint16_t ssfe_type;
376	uint16_t ssfe_flags;
377	uint32_t ssfe_length;
378	uint32_t ssfe_error;
379	struct sctp_sndinfo ssfe_info;
380	sctp_assoc_t ssfe_assoc_id;
381	uint8_t ssfe_data[];
382};
383
384/* flag that indicates state of data */
385#define SCTP_DATA_UNSENT	0x0001	/* inqueue never on wire */
386#define SCTP_DATA_SENT		0x0002	/* on wire at failure */
387
388/* shutdown event */
389struct sctp_shutdown_event {
390	uint16_t sse_type;
391	uint16_t sse_flags;
392	uint32_t sse_length;
393	sctp_assoc_t sse_assoc_id;
394};
395
396/* Adaptation layer indication stuff */
397struct sctp_adaptation_event {
398	uint16_t sai_type;
399	uint16_t sai_flags;
400	uint32_t sai_length;
401	uint32_t sai_adaptation_ind;
402	sctp_assoc_t sai_assoc_id;
403};
404
405struct sctp_setadaptation {
406	uint32_t ssb_adaptation_ind;
407};
408
409/* compatible old spelling */
410struct sctp_adaption_event {
411	uint16_t sai_type;
412	uint16_t sai_flags;
413	uint32_t sai_length;
414	uint32_t sai_adaption_ind;
415	sctp_assoc_t sai_assoc_id;
416};
417
418struct sctp_setadaption {
419	uint32_t ssb_adaption_ind;
420};
421
422/*
423 * Partial Delivery API event
424 */
425struct sctp_pdapi_event {
426	uint16_t pdapi_type;
427	uint16_t pdapi_flags;
428	uint32_t pdapi_length;
429	uint32_t pdapi_indication;
430	uint16_t pdapi_stream;
431	uint16_t pdapi_seq;
432	sctp_assoc_t pdapi_assoc_id;
433};
434
435/* indication values */
436#define SCTP_PARTIAL_DELIVERY_ABORTED	0x0001
437
438/*
439 * authentication key event
440 */
441struct sctp_authkey_event {
442	uint16_t auth_type;
443	uint16_t auth_flags;
444	uint32_t auth_length;
445	uint16_t auth_keynumber;
446	uint16_t auth_altkeynumber;
447	uint32_t auth_indication;
448	sctp_assoc_t auth_assoc_id;
449};
450
451/* indication values */
452#define SCTP_AUTH_NEW_KEY	0x0001
453#define SCTP_AUTH_NEWKEY	SCTP_AUTH_NEW_KEY
454#define SCTP_AUTH_NO_AUTH	0x0002
455#define SCTP_AUTH_FREE_KEY	0x0003
456
457struct sctp_sender_dry_event {
458	uint16_t sender_dry_type;
459	uint16_t sender_dry_flags;
460	uint32_t sender_dry_length;
461	sctp_assoc_t sender_dry_assoc_id;
462};
463
464/*
465 * Stream reset event - subscribe to SCTP_STREAM_RESET_EVENT
466 */
467struct sctp_stream_reset_event {
468	uint16_t strreset_type;
469	uint16_t strreset_flags;
470	uint32_t strreset_length;
471	sctp_assoc_t strreset_assoc_id;
472	uint16_t strreset_stream_list[];
473};
474
475/* flags in stream_reset_event (strreset_flags) */
476#define SCTP_STREAM_RESET_INCOMING_SSN  0x0001
477#define SCTP_STREAM_RESET_OUTGOING_SSN  0x0002
478#define SCTP_STREAM_RESET_DENIED        0x0004
479#define SCTP_STREAM_RESET_FAILED        0x0008
480
481/*
482 * Assoc reset event - subscribe to SCTP_ASSOC_RESET_EVENT
483 */
484struct sctp_assoc_reset_event {
485	uint16_t assocreset_type;
486	uint16_t assocreset_flags;
487	uint32_t assocreset_length;
488	sctp_assoc_t assocreset_assoc_id;
489	uint32_t assocreset_local_tsn;
490	uint32_t assocreset_remote_tsn;
491};
492
493#define SCTP_ASSOC_RESET_DENIED		0x0004
494#define SCTP_ASSOC_RESET_FAILED		0x0008
495
496/*
497 * Stream change event - subscribe to SCTP_STREAM_CHANGE_EVENT
498 */
499struct sctp_stream_change_event {
500	uint16_t strchange_type;
501	uint16_t strchange_flags;
502	uint32_t strchange_length;
503	sctp_assoc_t strchange_assoc_id;
504	uint16_t strchange_instrms;
505	uint16_t strchange_outstrms;
506};
507
508#define SCTP_STREAM_CHANGE_DENIED	0x0004
509#define SCTP_STREAM_CHANGE_FAILED	0x0008
510
511/* SCTP notification event */
512struct sctp_tlv {
513	uint16_t sn_type;
514	uint16_t sn_flags;
515	uint32_t sn_length;
516};
517
518union sctp_notification {
519	struct sctp_tlv sn_header;
520	struct sctp_assoc_change sn_assoc_change;
521	struct sctp_paddr_change sn_paddr_change;
522	struct sctp_remote_error sn_remote_error;
523	struct sctp_send_failed sn_send_failed;
524	struct sctp_shutdown_event sn_shutdown_event;
525	struct sctp_adaptation_event sn_adaptation_event;
526	/* compatibility same as above */
527	struct sctp_adaption_event sn_adaption_event;
528	struct sctp_pdapi_event sn_pdapi_event;
529	struct sctp_authkey_event sn_auth_event;
530	struct sctp_sender_dry_event sn_sender_dry_event;
531	struct sctp_send_failed_event sn_send_failed_event;
532	struct sctp_stream_reset_event sn_strreset_event;
533	struct sctp_assoc_reset_event sn_assocreset_event;
534	struct sctp_stream_change_event sn_strchange_event;
535};
536
537/* notification types */
538#define SCTP_ASSOC_CHANGE                       0x0001
539#define SCTP_PEER_ADDR_CHANGE                   0x0002
540#define SCTP_REMOTE_ERROR                       0x0003
541#define SCTP_SEND_FAILED                        0x0004
542#define SCTP_SHUTDOWN_EVENT                     0x0005
543#define SCTP_ADAPTATION_INDICATION              0x0006
544/* same as above */
545#define SCTP_ADAPTION_INDICATION                0x0006
546#define SCTP_PARTIAL_DELIVERY_EVENT             0x0007
547#define SCTP_AUTHENTICATION_EVENT               0x0008
548#define SCTP_STREAM_RESET_EVENT                 0x0009
549#define SCTP_SENDER_DRY_EVENT                   0x000a
550#define SCTP_NOTIFICATIONS_STOPPED_EVENT        0x000b	/* we don't send this */
551#define SCTP_ASSOC_RESET_EVENT                  0x000c
552#define SCTP_STREAM_CHANGE_EVENT                0x000d
553#define SCTP_SEND_FAILED_EVENT                  0x000e
554/*
555 * socket option structs
556 */
557
558struct sctp_paddrparams {
559	struct sockaddr_storage spp_address;
560	sctp_assoc_t spp_assoc_id;
561	uint32_t spp_hbinterval;
562	uint32_t spp_pathmtu;
563	uint32_t spp_flags;
564	uint32_t spp_ipv6_flowlabel;
565	uint16_t spp_pathmaxrxt;
566	uint8_t spp_dscp;
567};
568#define spp_ipv4_tos spp_dscp
569
570#define SPP_HB_ENABLE		0x00000001
571#define SPP_HB_DISABLE		0x00000002
572#define SPP_HB_DEMAND		0x00000004
573#define SPP_PMTUD_ENABLE	0x00000008
574#define SPP_PMTUD_DISABLE	0x00000010
575#define SPP_HB_TIME_IS_ZERO     0x00000080
576#define SPP_IPV6_FLOWLABEL      0x00000100
577#define SPP_DSCP                0x00000200
578#define SPP_IPV4_TOS            SPP_DSCP
579
580struct sctp_paddrthlds {
581	struct sockaddr_storage spt_address;
582	sctp_assoc_t spt_assoc_id;
583	uint16_t spt_pathmaxrxt;
584	uint16_t spt_pathpfthld;
585	uint16_t spt_pathcpthld;
586};
587
588struct sctp_paddrinfo {
589	struct sockaddr_storage spinfo_address;
590	sctp_assoc_t spinfo_assoc_id;
591	int32_t spinfo_state;
592	uint32_t spinfo_cwnd;
593	uint32_t spinfo_srtt;
594	uint32_t spinfo_rto;
595	uint32_t spinfo_mtu;
596};
597
598struct sctp_rtoinfo {
599	sctp_assoc_t srto_assoc_id;
600	uint32_t srto_initial;
601	uint32_t srto_max;
602	uint32_t srto_min;
603};
604
605struct sctp_assocparams {
606	sctp_assoc_t sasoc_assoc_id;
607	uint32_t sasoc_peer_rwnd;
608	uint32_t sasoc_local_rwnd;
609	uint32_t sasoc_cookie_life;
610	uint16_t sasoc_asocmaxrxt;
611	uint16_t sasoc_number_peer_destinations;
612};
613
614struct sctp_setprim {
615	struct sockaddr_storage ssp_addr;
616	sctp_assoc_t ssp_assoc_id;
617	uint8_t ssp_padding[4];
618};
619
620struct sctp_setpeerprim {
621	struct sockaddr_storage sspp_addr;
622	sctp_assoc_t sspp_assoc_id;
623	uint8_t sspp_padding[4];
624};
625
626union sctp_sockstore {
627	struct sockaddr_in sin;
628	struct sockaddr_in6 sin6;
629	struct sockaddr sa;
630};
631
632struct sctp_getaddresses {
633	sctp_assoc_t sget_assoc_id;
634	union sctp_sockstore addr[];
635};
636
637struct sctp_status {
638	sctp_assoc_t sstat_assoc_id;
639	int32_t sstat_state;
640	uint32_t sstat_rwnd;
641	uint16_t sstat_unackdata;
642	uint16_t sstat_penddata;
643	uint16_t sstat_instrms;
644	uint16_t sstat_outstrms;
645	uint32_t sstat_fragmentation_point;
646	struct sctp_paddrinfo sstat_primary;
647};
648
649/*
650 * AUTHENTICATION support
651 */
652/* SCTP_AUTH_CHUNK */
653struct sctp_authchunk {
654	uint8_t sauth_chunk;
655};
656
657/* SCTP_AUTH_KEY */
658struct sctp_authkey {
659	sctp_assoc_t sca_assoc_id;
660	uint16_t sca_keynumber;
661	uint16_t sca_keylength;
662	uint8_t sca_key[];
663};
664
665/* SCTP_HMAC_IDENT */
666struct sctp_hmacalgo {
667	uint32_t shmac_number_of_idents;
668	uint16_t shmac_idents[];
669};
670
671/* AUTH hmac_id */
672#define SCTP_AUTH_HMAC_ID_RSVD		0x0000
673#define SCTP_AUTH_HMAC_ID_SHA1		0x0001	/* default, mandatory */
674#define SCTP_AUTH_HMAC_ID_SHA256	0x0003
675
676/* SCTP_AUTH_ACTIVE_KEY / SCTP_AUTH_DELETE_KEY */
677struct sctp_authkeyid {
678	sctp_assoc_t scact_assoc_id;
679	uint16_t scact_keynumber;
680};
681
682/* SCTP_PEER_AUTH_CHUNKS / SCTP_LOCAL_AUTH_CHUNKS */
683struct sctp_authchunks {
684	sctp_assoc_t gauth_assoc_id;
685	uint32_t gauth_number_of_chunks;
686	uint8_t gauth_chunks[];
687};
688
689struct sctp_assoc_value {
690	sctp_assoc_t assoc_id;
691	uint32_t assoc_value;
692};
693
694struct sctp_cc_option {
695	int option;
696	struct sctp_assoc_value aid_value;
697};
698
699struct sctp_stream_value {
700	sctp_assoc_t assoc_id;
701	uint16_t stream_id;
702	uint16_t stream_value;
703};
704
705struct sctp_assoc_ids {
706	uint32_t gaids_number_of_ids;
707	sctp_assoc_t gaids_assoc_id[];
708};
709
710struct sctp_sack_info {
711	sctp_assoc_t sack_assoc_id;
712	uint32_t sack_delay;
713	uint32_t sack_freq;
714};
715
716struct sctp_timeouts {
717	sctp_assoc_t stimo_assoc_id;
718	uint32_t stimo_init;
719	uint32_t stimo_data;
720	uint32_t stimo_sack;
721	uint32_t stimo_shutdown;
722	uint32_t stimo_heartbeat;
723	uint32_t stimo_cookie;
724	uint32_t stimo_shutdownack;
725};
726
727struct sctp_udpencaps {
728	struct sockaddr_storage sue_address;
729	sctp_assoc_t sue_assoc_id;
730	uint16_t sue_port;
731};
732
733struct sctp_prstatus {
734	sctp_assoc_t sprstat_assoc_id;
735	uint16_t sprstat_sid;
736	uint16_t sprstat_policy;
737	uint64_t sprstat_abandoned_unsent;
738	uint64_t sprstat_abandoned_sent;
739};
740
741struct sctp_cwnd_args {
742	struct sctp_nets *net;	/* network to *//* FIXME: LP64 issue */
743	uint32_t cwnd_new_value;	/* cwnd in k */
744	uint32_t pseudo_cumack;
745	uint16_t inflight;	/* flightsize in k */
746	uint16_t cwnd_augment;	/* increment to it */
747	uint8_t meets_pseudo_cumack;
748	uint8_t need_new_pseudo_cumack;
749	uint8_t cnt_in_send;
750	uint8_t cnt_in_str;
751};
752
753struct sctp_blk_args {
754	uint32_t onsb;		/* in 1k bytes */
755	uint32_t sndlen;	/* len of send being attempted */
756	uint32_t peer_rwnd;	/* rwnd of peer */
757	uint16_t send_sent_qcnt;	/* chnk cnt */
758	uint16_t stream_qcnt;	/* chnk cnt */
759	uint16_t chunks_on_oque;	/* chunks out */
760	uint16_t flight_size;	/* flight size in k */
761};
762
763/*
764 * Max we can reset in one setting, note this is dictated not by the define
765 * but the size of a mbuf cluster so don't change this define and think you
766 * can specify more. You must do multiple resets if you want to reset more
767 * than SCTP_MAX_EXPLICIT_STR_RESET.
768 */
769#define SCTP_MAX_EXPLICT_STR_RESET   1000
770
771struct sctp_reset_streams {
772	sctp_assoc_t srs_assoc_id;
773	uint16_t srs_flags;
774	uint16_t srs_number_streams;	/* 0 == ALL */
775	uint16_t srs_stream_list[];	/* list if strrst_num_streams is not 0 */
776};
777
778struct sctp_add_streams {
779	sctp_assoc_t sas_assoc_id;
780	uint16_t sas_instrms;
781	uint16_t sas_outstrms;
782};
783
784struct sctp_get_nonce_values {
785	sctp_assoc_t gn_assoc_id;
786	uint32_t gn_peers_tag;
787	uint32_t gn_local_tag;
788};
789
790/* Values for SCTP_ACCEPT_ZERO_CHECKSUM */
791#define SCTP_EDMID_NONE             0
792#define SCTP_EDMID_LOWER_LAYER_DTLS 1
793
794/* Debugging logs */
795struct sctp_str_log {
796	void *stcb;		/* FIXME: LP64 issue */
797	uint32_t n_tsn;
798	uint32_t e_tsn;
799	uint16_t n_sseq;
800	uint16_t e_sseq;
801	uint16_t strm;
802};
803
804struct sctp_sb_log {
805	void *stcb;		/* FIXME: LP64 issue */
806	uint32_t so_sbcc;
807	uint32_t stcb_sbcc;
808	uint32_t incr;
809};
810
811struct sctp_fr_log {
812	uint32_t largest_tsn;
813	uint32_t largest_new_tsn;
814	uint32_t tsn;
815};
816
817struct sctp_fr_map {
818	uint32_t base;
819	uint32_t cum;
820	uint32_t high;
821};
822
823struct sctp_rwnd_log {
824	uint32_t rwnd;
825	uint32_t send_size;
826	uint32_t overhead;
827	uint32_t new_rwnd;
828};
829
830struct sctp_mbcnt_log {
831	uint32_t total_queue_size;
832	uint32_t size_change;
833	uint32_t total_queue_mb_size;
834	uint32_t mbcnt_change;
835};
836
837struct sctp_sack_log {
838	uint32_t cumack;
839	uint32_t oldcumack;
840	uint32_t tsn;
841	uint16_t numGaps;
842	uint16_t numDups;
843};
844
845struct sctp_lock_log {
846	void *sock;		/* FIXME: LP64 issue */
847	void *inp;		/* FIXME: LP64 issue */
848	uint8_t tcb_lock;
849	uint8_t inp_lock;
850	uint8_t info_lock;
851	uint8_t sock_lock;
852	uint8_t sockrcvbuf_lock;
853	uint8_t socksndbuf_lock;
854	uint8_t create_lock;
855	uint8_t resv;
856};
857
858struct sctp_rto_log {
859	void *net;		/* FIXME: LP64 issue */
860	uint32_t rtt;
861};
862
863struct sctp_nagle_log {
864	void *stcb;		/* FIXME: LP64 issue */
865	uint32_t total_flight;
866	uint32_t total_in_queue;
867	uint16_t count_in_queue;
868	uint16_t count_in_flight;
869};
870
871struct sctp_sbwake_log {
872	void *stcb;		/* FIXME: LP64 issue */
873	uint16_t send_q;
874	uint16_t sent_q;
875	uint16_t flight;
876	uint16_t wake_cnt;
877	uint8_t stream_qcnt;	/* chnk cnt */
878	uint8_t chunks_on_oque;	/* chunks out */
879	uint8_t sbflags;
880	uint8_t sctpflags;
881};
882
883struct sctp_misc_info {
884	uint32_t log1;
885	uint32_t log2;
886	uint32_t log3;
887	uint32_t log4;
888};
889
890struct sctp_log_closing {
891	void *inp;		/* FIXME: LP64 issue */
892	void *stcb;		/* FIXME: LP64 issue */
893	uint32_t sctp_flags;
894	uint16_t state;
895	int16_t loc;
896};
897
898struct sctp_mbuf_log {
899	struct mbuf *mp;	/* FIXME: LP64 issue */
900	caddr_t ext;
901	caddr_t data;
902	uint16_t size;
903	uint8_t refcnt;
904	uint8_t mbuf_flags;
905};
906
907struct sctp_cwnd_log {
908	uint64_t time_event;
909	uint8_t from;
910	uint8_t event_type;
911	uint8_t resv[2];
912	union {
913		struct sctp_log_closing close;
914		struct sctp_blk_args blk;
915		struct sctp_cwnd_args cwnd;
916		struct sctp_str_log strlog;
917		struct sctp_fr_log fr;
918		struct sctp_fr_map map;
919		struct sctp_rwnd_log rwnd;
920		struct sctp_mbcnt_log mbcnt;
921		struct sctp_sack_log sack;
922		struct sctp_lock_log lock;
923		struct sctp_rto_log rto;
924		struct sctp_sb_log sb;
925		struct sctp_nagle_log nagle;
926		struct sctp_sbwake_log wake;
927		struct sctp_mbuf_log mb;
928		struct sctp_misc_info misc;
929	}     x;
930};
931
932struct sctp_cwnd_log_req {
933	int32_t num_in_log;	/* Number in log */
934	int32_t num_ret;	/* Number returned */
935	int32_t start_at;	/* start at this one */
936	int32_t end_at;		/* end at this one */
937	struct sctp_cwnd_log log[];
938};
939
940struct sctp_timeval {
941	uint32_t tv_sec;
942	uint32_t tv_usec;
943};
944
945struct sctpstat {
946	struct sctp_timeval sctps_discontinuitytime;	/* sctpStats 18
947							 * (TimeStamp) */
948	/* MIB according to RFC 3873 */
949	uint32_t sctps_currestab;	/* sctpStats  1   (Gauge32) */
950	uint32_t sctps_activeestab;	/* sctpStats  2 (Counter32) */
951	uint32_t sctps_restartestab;
952	uint32_t sctps_collisionestab;
953	uint32_t sctps_passiveestab;	/* sctpStats  3 (Counter32) */
954	uint32_t sctps_aborted;	/* sctpStats  4 (Counter32) */
955	uint32_t sctps_shutdown;	/* sctpStats  5 (Counter32) */
956	uint32_t sctps_outoftheblue;	/* sctpStats  6 (Counter32) */
957	uint32_t sctps_checksumerrors;	/* sctpStats  7 (Counter32) */
958	uint32_t sctps_outcontrolchunks;	/* sctpStats  8 (Counter64) */
959	uint32_t sctps_outorderchunks;	/* sctpStats  9 (Counter64) */
960	uint32_t sctps_outunorderchunks;	/* sctpStats 10 (Counter64) */
961	uint32_t sctps_incontrolchunks;	/* sctpStats 11 (Counter64) */
962	uint32_t sctps_inorderchunks;	/* sctpStats 12 (Counter64) */
963	uint32_t sctps_inunorderchunks;	/* sctpStats 13 (Counter64) */
964	uint32_t sctps_fragusrmsgs;	/* sctpStats 14 (Counter64) */
965	uint32_t sctps_reasmusrmsgs;	/* sctpStats 15 (Counter64) */
966	uint32_t sctps_outpackets;	/* sctpStats 16 (Counter64) */
967	uint32_t sctps_inpackets;	/* sctpStats 17 (Counter64) */
968
969	/* input statistics: */
970	uint32_t sctps_recvpackets;	/* total input packets        */
971	uint32_t sctps_recvdatagrams;	/* total input datagrams      */
972	uint32_t sctps_recvpktwithdata;	/* total packets that had data */
973	uint32_t sctps_recvsacks;	/* total input SACK chunks    */
974	uint32_t sctps_recvdata;	/* total input DATA chunks    */
975	uint32_t sctps_recvdupdata;	/* total input duplicate DATA chunks */
976	uint32_t sctps_recvheartbeat;	/* total input HB chunks      */
977	uint32_t sctps_recvheartbeatack;	/* total input HB-ACK chunks  */
978	uint32_t sctps_recvecne;	/* total input ECNE chunks    */
979	uint32_t sctps_recvauth;	/* total input AUTH chunks    */
980	uint32_t sctps_recvauthmissing;	/* total input chunks missing AUTH */
981	uint32_t sctps_recvivalhmacid;	/* total number of invalid HMAC ids
982					 * received */
983	uint32_t sctps_recvivalkeyid;	/* total number of invalid secret ids
984					 * received */
985	uint32_t sctps_recvauthfailed;	/* total number of auth failed */
986	uint32_t sctps_recvexpress;	/* total fast path receives all one
987					 * chunk */
988	uint32_t sctps_recvexpressm;	/* total fast path multi-part data */
989	uint32_t sctps_recv_spare;	/* formerly sctps_recvnocrc */
990	uint32_t sctps_recvswcrc;
991	uint32_t sctps_recvhwcrc;
992
993	/* output statistics: */
994	uint32_t sctps_sendpackets;	/* total output packets       */
995	uint32_t sctps_sendsacks;	/* total output SACKs         */
996	uint32_t sctps_senddata;	/* total output DATA chunks   */
997	uint32_t sctps_sendretransdata;	/* total output retransmitted DATA
998					 * chunks */
999	uint32_t sctps_sendfastretrans;	/* total output fast retransmitted
1000					 * DATA chunks */
1001	uint32_t sctps_sendmultfastretrans;	/* total FR's that happened
1002						 * more than once to same
1003						 * chunk (u-del multi-fr
1004						 * algo). */
1005	uint32_t sctps_sendheartbeat;	/* total output HB chunks     */
1006	uint32_t sctps_sendecne;	/* total output ECNE chunks    */
1007	uint32_t sctps_sendauth;	/* total output AUTH chunks FIXME   */
1008	uint32_t sctps_senderrors;	/* ip_output error counter */
1009	uint32_t sctps_send_spare;	/* formerly sctps_sendnocrc */
1010	uint32_t sctps_sendswcrc;
1011	uint32_t sctps_sendhwcrc;
1012	/* PCKDROPREP statistics: */
1013	uint32_t sctps_pdrpfmbox;	/* Packet drop from middle box */
1014	uint32_t sctps_pdrpfehos;	/* P-drop from end host */
1015	uint32_t sctps_pdrpmbda;	/* P-drops with data */
1016	uint32_t sctps_pdrpmbct;	/* P-drops, non-data, non-endhost */
1017	uint32_t sctps_pdrpbwrpt;	/* P-drop, non-endhost, bandwidth rep
1018					 * only */
1019	uint32_t sctps_pdrpcrupt;	/* P-drop, not enough for chunk header */
1020	uint32_t sctps_pdrpnedat;	/* P-drop, not enough data to confirm */
1021	uint32_t sctps_pdrppdbrk;	/* P-drop, where process_chunk_drop
1022					 * said break */
1023	uint32_t sctps_pdrptsnnf;	/* P-drop, could not find TSN */
1024	uint32_t sctps_pdrpdnfnd;	/* P-drop, attempt reverse TSN lookup */
1025	uint32_t sctps_pdrpdiwnp;	/* P-drop, e-host confirms zero-rwnd */
1026	uint32_t sctps_pdrpdizrw;	/* P-drop, midbox confirms no space */
1027	uint32_t sctps_pdrpbadd;	/* P-drop, data did not match TSN */
1028	uint32_t sctps_pdrpmark;	/* P-drop, TSN's marked for Fast
1029					 * Retran */
1030	/* timeouts */
1031	uint32_t sctps_timoiterator;	/* Number of iterator timers that
1032					 * fired */
1033	uint32_t sctps_timodata;	/* Number of T3 data time outs */
1034	uint32_t sctps_timowindowprobe;	/* Number of window probe (T3) timers
1035					 * that fired */
1036	uint32_t sctps_timoinit;	/* Number of INIT timers that fired */
1037	uint32_t sctps_timosack;	/* Number of sack timers that fired */
1038	uint32_t sctps_timoshutdown;	/* Number of shutdown timers that
1039					 * fired */
1040	uint32_t sctps_timoheartbeat;	/* Number of heartbeat timers that
1041					 * fired */
1042	uint32_t sctps_timocookie;	/* Number of times a cookie timeout
1043					 * fired */
1044	uint32_t sctps_timosecret;	/* Number of times an endpoint changed
1045					 * its cookie secret */
1046	uint32_t sctps_timopathmtu;	/* Number of PMTU timers that fired */
1047	uint32_t sctps_timoshutdownack;	/* Number of shutdown ack timers that
1048					 * fired */
1049	uint32_t sctps_timoshutdownguard;	/* Number of shutdown guard
1050						 * timers that fired */
1051	uint32_t sctps_timostrmrst;	/* Number of stream reset timers that
1052					 * fired */
1053	uint32_t sctps_timoearlyfr;	/* Number of early FR timers that
1054					 * fired */
1055	uint32_t sctps_timoasconf;	/* Number of times an asconf timer
1056					 * fired */
1057	uint32_t sctps_timodelprim;	/* Number of times a prim_deleted
1058					 * timer fired */
1059	uint32_t sctps_timoautoclose;	/* Number of times auto close timer
1060					 * fired */
1061	uint32_t sctps_timoassockill;	/* Number of asoc free timers expired */
1062	uint32_t sctps_timoinpkill;	/* Number of inp free timers expired */
1063	/* former early FR counters */
1064	uint32_t sctps_spare[11];
1065	/* others */
1066	uint32_t sctps_hdrops;	/* packet shorter than header */
1067	uint32_t sctps_badsum;	/* checksum error             */
1068	uint32_t sctps_noport;	/* no endpoint for port       */
1069	uint32_t sctps_badvtag;	/* bad v-tag                  */
1070	uint32_t sctps_badsid;	/* bad SID                    */
1071	uint32_t sctps_nomem;	/* no memory                  */
1072	uint32_t sctps_fastretransinrtt;	/* number of multiple FR in a
1073						 * RTT window */
1074	uint32_t sctps_markedretrans;
1075	uint32_t sctps_naglesent;	/* nagle allowed sending      */
1076	uint32_t sctps_naglequeued;	/* nagle doesn't allow sending */
1077	uint32_t sctps_maxburstqueued;	/* max burst doesn't allow sending */
1078	uint32_t sctps_ifnomemqueued;	/* look ahead tells us no memory in
1079					 * interface ring buffer OR we had a
1080					 * send error and are queuing one
1081					 * send. */
1082	uint32_t sctps_windowprobed;	/* total number of window probes sent */
1083	uint32_t sctps_lowlevelerr;	/* total times an output error causes
1084					 * us to clamp down on next user send. */
1085	uint32_t sctps_lowlevelerrusr;	/* total times sctp_senderrors were
1086					 * caused from a user send from a user
1087					 * invoked send not a sack response */
1088	uint32_t sctps_datadropchklmt;	/* Number of in data drops due to
1089					 * chunk limit reached */
1090	uint32_t sctps_datadroprwnd;	/* Number of in data drops due to rwnd
1091					 * limit reached */
1092	uint32_t sctps_ecnereducedcwnd;	/* Number of times a ECN reduced the
1093					 * cwnd */
1094	uint32_t sctps_vtagexpress;	/* Used express lookup via vtag */
1095	uint32_t sctps_vtagbogus;	/* Collision in express lookup. */
1096	uint32_t sctps_primary_randry;	/* Number of times the sender ran dry
1097					 * of user data on primary */
1098	uint32_t sctps_cmt_randry;	/* Same for above */
1099	uint32_t sctps_slowpath_sack;	/* Sacks the slow way */
1100	uint32_t sctps_wu_sacks_sent;	/* Window Update only sacks sent */
1101	uint32_t sctps_sends_with_flags;	/* number of sends with
1102						 * sinfo_flags !=0 */
1103	uint32_t sctps_sends_with_unord;	/* number of unordered sends */
1104	uint32_t sctps_sends_with_eof;	/* number of sends with EOF flag set */
1105	uint32_t sctps_sends_with_abort;	/* number of sends with ABORT
1106						 * flag set */
1107	uint32_t sctps_protocol_drain_calls;	/* number of times protocol
1108						 * drain called */
1109	uint32_t sctps_protocol_drains_done;	/* number of times we did a
1110						 * protocol drain */
1111	uint32_t sctps_read_peeks;	/* Number of times recv was called
1112					 * with peek */
1113	uint32_t sctps_cached_chk;	/* Number of cached chunks used */
1114	uint32_t sctps_cached_strmoq;	/* Number of cached stream oq's used */
1115	uint32_t sctps_left_abandon;	/* Number of unread messages abandoned
1116					 * by close */
1117	uint32_t sctps_send_burst_avoid;	/* Unused */
1118	uint32_t sctps_send_cwnd_avoid;	/* Send cwnd full  avoidance, already
1119					 * max burst inflight to net */
1120	uint32_t sctps_fwdtsn_map_over;	/* number of map array over-runs via
1121					 * fwd-tsn's */
1122	uint32_t sctps_queue_upd_ecne;	/* Number of times we queued or
1123					 * updated an ECN chunk on send queue */
1124	uint32_t sctps_recvzerocrc;	/* Number of accepted packets with
1125					 * zero CRC */
1126	uint32_t sctps_sendzerocrc;	/* Number of packets sent with zero
1127					 * CRC */
1128	uint32_t sctps_reserved[29];	/* Future ABI compat - remove int's
1129					 * from here when adding new */
1130};
1131
1132#define SCTP_STAT_INCR(_x) SCTP_STAT_INCR_BY(_x,1)
1133#define SCTP_STAT_DECR(_x) SCTP_STAT_DECR_BY(_x,1)
1134#if defined(SMP) && defined(SCTP_USE_PERCPU_STAT)
1135#define SCTP_STAT_INCR_BY(_x,_d) (SCTP_BASE_STATS[PCPU_GET(cpuid)]._x += _d)
1136#define SCTP_STAT_DECR_BY(_x,_d) (SCTP_BASE_STATS[PCPU_GET(cpuid)]._x -= _d)
1137#else
1138#define SCTP_STAT_INCR_BY(_x,_d) atomic_add_int(&SCTP_BASE_STAT(_x), _d)
1139#define SCTP_STAT_DECR_BY(_x,_d) atomic_subtract_int(&SCTP_BASE_STAT(_x), _d)
1140#endif
1141/* The following macros are for handling MIB values, */
1142#define SCTP_STAT_INCR_COUNTER32(_x) SCTP_STAT_INCR(_x)
1143#define SCTP_STAT_INCR_COUNTER64(_x) SCTP_STAT_INCR(_x)
1144#define SCTP_STAT_INCR_GAUGE32(_x) SCTP_STAT_INCR(_x)
1145#define SCTP_STAT_DECR_COUNTER32(_x) SCTP_STAT_DECR(_x)
1146#define SCTP_STAT_DECR_COUNTER64(_x) SCTP_STAT_DECR(_x)
1147#define SCTP_STAT_DECR_GAUGE32(_x) SCTP_STAT_DECR(_x)
1148
1149/***********************************/
1150/* And something for us old timers */
1151/***********************************/
1152
1153#ifndef ntohll
1154#include <sys/endian.h>
1155#define ntohll(x) be64toh(x)
1156#endif
1157
1158#ifndef htonll
1159#include <sys/endian.h>
1160#define htonll(x) htobe64(x)
1161#endif
1162/***********************************/
1163
1164struct xsctp_inpcb {
1165	uint32_t last;
1166	uint32_t flags;
1167	uint64_t features;
1168	uint32_t total_sends;
1169	uint32_t total_recvs;
1170	uint32_t total_nospaces;
1171	uint32_t fragmentation_point;
1172	uint16_t local_port;
1173	uint16_t qlen_old;
1174	uint16_t maxqlen_old;
1175	uint16_t __spare16;
1176	kvaddr_t socket;
1177	uint32_t qlen;
1178	uint32_t maxqlen;
1179	uint32_t extra_padding[26];	/* future */
1180};
1181
1182struct xsctp_tcb {
1183	union sctp_sockstore primary_addr;	/* sctpAssocEntry 5/6 */
1184	uint32_t last;
1185	uint32_t heartbeat_interval;	/* sctpAssocEntry 7   */
1186	uint32_t state;		/* sctpAssocEntry 8   */
1187	uint32_t in_streams;	/* sctpAssocEntry 9   */
1188	uint32_t out_streams;	/* sctpAssocEntry 10  */
1189	uint32_t max_nr_retrans;	/* sctpAssocEntry 11  */
1190	uint32_t primary_process;	/* sctpAssocEntry 12  */
1191	uint32_t T1_expireries;	/* sctpAssocEntry 13  */
1192	uint32_t T2_expireries;	/* sctpAssocEntry 14  */
1193	uint32_t retransmitted_tsns;	/* sctpAssocEntry 15  */
1194	uint32_t total_sends;
1195	uint32_t total_recvs;
1196	uint32_t local_tag;
1197	uint32_t remote_tag;
1198	uint32_t initial_tsn;
1199	uint32_t highest_tsn;
1200	uint32_t cumulative_tsn;
1201	uint32_t cumulative_tsn_ack;
1202	uint32_t mtu;
1203	uint32_t refcnt;
1204	uint16_t local_port;	/* sctpAssocEntry 3   */
1205	uint16_t remote_port;	/* sctpAssocEntry 4   */
1206	struct sctp_timeval start_time;	/* sctpAssocEntry 16  */
1207	struct sctp_timeval discontinuity_time;	/* sctpAssocEntry 17  */
1208	uint32_t peers_rwnd;
1209	sctp_assoc_t assoc_id;	/* sctpAssocEntry 1   */
1210	uint32_t extra_padding[32];	/* future */
1211};
1212
1213struct xsctp_laddr {
1214	union sctp_sockstore address;	/* sctpAssocLocalAddrEntry 1/2 */
1215	uint32_t last;
1216	struct sctp_timeval start_time;	/* sctpAssocLocalAddrEntry 3   */
1217	uint32_t extra_padding[32];	/* future */
1218};
1219
1220struct xsctp_raddr {
1221	union sctp_sockstore address;	/* sctpAssocLocalRemEntry 1/2 */
1222	uint32_t last;
1223	uint32_t rto;		/* sctpAssocLocalRemEntry 5   */
1224	uint32_t max_path_rtx;	/* sctpAssocLocalRemEntry 6   */
1225	uint32_t rtx;		/* sctpAssocLocalRemEntry 7   */
1226	uint32_t error_counter;	/* */
1227	uint32_t cwnd;		/* */
1228	uint32_t flight_size;	/* */
1229	uint32_t mtu;		/* */
1230	uint8_t active;		/* sctpAssocLocalRemEntry 3   */
1231	uint8_t confirmed;	/* */
1232	uint8_t heartbeat_enabled;	/* sctpAssocLocalRemEntry 4   */
1233	uint8_t potentially_failed;
1234	struct sctp_timeval start_time;	/* sctpAssocLocalRemEntry 8   */
1235	uint32_t rtt;
1236	uint32_t heartbeat_interval;
1237	uint32_t ssthresh;
1238	uint16_t encaps_port;
1239	uint16_t state;
1240	uint32_t extra_padding[29];	/* future */
1241};
1242
1243#define SCTP_MAX_LOGGING_SIZE 30000
1244#define SCTP_TRACE_PARAMS 6	/* This number MUST be even   */
1245
1246struct sctp_log_entry {
1247	uint64_t timestamp;
1248	uint32_t subsys;
1249	uint32_t padding;
1250	uint32_t params[SCTP_TRACE_PARAMS];
1251};
1252
1253struct sctp_log {
1254	struct sctp_log_entry entry[SCTP_MAX_LOGGING_SIZE];
1255	uint32_t index;
1256	uint32_t padding;
1257};
1258
1259/*
1260 * Kernel defined for sctp_send
1261 */
1262#if defined(_KERNEL) || defined(__Userspace__)
1263int
1264sctp_lower_sosend(struct socket *so,
1265    struct sockaddr *addr,
1266    struct uio *uio,
1267    struct mbuf *top,
1268    struct mbuf *control,
1269    int flags,
1270    struct sctp_sndrcvinfo *srcv
1271    ,struct thread *p
1272);
1273
1274int
1275sctp_sorecvmsg(struct socket *so,
1276    struct uio *uio,
1277    struct mbuf **mp,
1278    struct sockaddr *from,
1279    int fromlen,
1280    int *msg_flags,
1281    struct sctp_sndrcvinfo *sinfo,
1282    int filling_sinfo);
1283#endif
1284
1285/*
1286 * API system calls
1287 */
1288#if !(defined(_KERNEL)) && !(defined(__Userspace__))
1289
1290__BEGIN_DECLS
1291int sctp_peeloff(int, sctp_assoc_t);
1292int sctp_bindx(int, struct sockaddr *, int, int);
1293int sctp_connectx(int, const struct sockaddr *, int, sctp_assoc_t *);
1294int sctp_getaddrlen(sa_family_t);
1295int sctp_getpaddrs(int, sctp_assoc_t, struct sockaddr **);
1296void sctp_freepaddrs(struct sockaddr *);
1297int sctp_getladdrs(int, sctp_assoc_t, struct sockaddr **);
1298void sctp_freeladdrs(struct sockaddr *);
1299int sctp_opt_info(int, sctp_assoc_t, int, void *, socklen_t *);
1300
1301/* deprecated */
1302ssize_t
1303sctp_sendmsg(int, const void *, size_t, const struct sockaddr *,
1304    socklen_t, uint32_t, uint32_t, uint16_t, uint32_t, uint32_t);
1305
1306/* deprecated */
1307ssize_t
1308sctp_send(int, const void *, size_t,
1309    const struct sctp_sndrcvinfo *, int);
1310
1311/* deprecated */
1312ssize_t
1313sctp_sendx(int, const void *, size_t, struct sockaddr *,
1314    int, struct sctp_sndrcvinfo *, int);
1315
1316/* deprecated */
1317ssize_t
1318sctp_sendmsgx(int sd, const void *, size_t, struct sockaddr *,
1319    int, uint32_t, uint32_t, uint16_t, uint32_t, uint32_t);
1320
1321sctp_assoc_t sctp_getassocid(int, struct sockaddr *);
1322
1323/* deprecated */
1324ssize_t
1325sctp_recvmsg(int, void *, size_t, struct sockaddr *, socklen_t *,
1326    struct sctp_sndrcvinfo *, int *);
1327
1328ssize_t
1329sctp_sendv(int, const struct iovec *, int, struct sockaddr *,
1330    int, void *, socklen_t, unsigned int, int);
1331
1332ssize_t
1333sctp_recvv(int, const struct iovec *, int, struct sockaddr *,
1334    socklen_t *, void *, socklen_t *, unsigned int *, int *);
1335
1336__END_DECLS
1337
1338#endif				/* !_KERNEL */
1339#endif				/* !__sctp_uio_h__ */
1340